Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8c60cebf1a6fd3…

MALICIOUS

PDF

327.7 KB Created: 2022-01-29 03:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: e5608e25255247df495a054800e2ca20 SHA-1: de5b1c6b08ed40c9f7697e25e8a4ee354c1b54f7 SHA-256: aa8c60cebf1a6fd3fa05df7bc1724c647887d6d142ee9ff4c7c39efcfbc1bedd
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and multiple external URIs, including a link farm hosted on compromised WordPress sites, indicating a phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to download and execute a second-stage payload. The primary lure URL is a redirector designed for SEO phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://podar.co.za/XSRYdR1H?utm_term=business+card+maker+template PDF link annotation
    • http://www.louervendreaumaroc.com/kcfinder/upload/files/1608899492.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cf8cd6dad34---dejurujabasowelipasazaw.pdfIn PDF document text
    • http://www.2m-france.com/img/uploaded/file/nubewamerulobeba.pdfIn PDF document text
    • http://innobiztour.com/FileData/ckfinder/files/20211211_B494085EF73AD176.pdfIn PDF document text
    • https://reparationmobile.net/userfiles/file/monojen.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f43cca9cb4f---72775895959.pdfIn PDF document text
    • https://whiteplacard.com/UserFiles/file/88531517661.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162cb17162f3---30845810249.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/40039430869.pdfIn PDF document text
    • https://hram-uspeniya.ru/ckfinder/userfiles/files/24874666714.pdfIn PDF document text
    • http://www.yeosung21.or.kr/ckfinder/userfiles/files/1638907590.pdfIn PDF document text
    • https://sfasg.jp/js/ckfinder/userfiles/files/97876570875.pdfIn PDF document text
    • https://vegan-eshop.cz/data/file/gizedefadixila.pdfIn PDF document text
    • http://chickenwild.com/upload/contents/images/images/labap.pdfIn PDF document text
    • http://lnshiyue.com/userfiles/file/20211205154930_1439125073.pdfIn PDF document text
    • https://malmospelmanslag.se/userfiles/file/27131507897.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/e89ff04a41c91f4dbcf128ebc1467c19/88646096622.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/bazagogobusoduz.pdfIn PDF document text
    • http://alrehabourhome.com/userfiles/files/tewawanomonam.pdfIn PDF document text
    • https://santevita-bg.com/ckfinder/userfiles/files/73618784403.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/xezuremufefobe.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/161e147d55efca---woputo.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/tasopobibat.pdfIn PDF document text
    • http://dalieuht.com/app/webroot/uploads/files/68650250068.pdfIn PDF document text
    • http://netpart.hu/kcfinder/upload/files/58088719557.pdfIn PDF document text
    • https://aljazeerahpetroleum.ae/userfiles/files/jejikogofozevajawegos.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/37330268099.pdfIn PDF document text
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/fovikeresiredufirulezina.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004b4cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4CF 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004cb73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB73 10800 bytes
SHA-256: 700b6bb554e4f8d08b4416584456dc6ab19adc9dc1504b15092d69f56c6f3812
font_02_sfnt_off0004e455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E455 16752 bytes
SHA-256: ab0f523a79de002741d74b0129d7e84aea3e3f43fb7c072379ecba999a7de1f4

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